I-alloy 825 iyingxubevange ye-nickel-iron-chromium ye-austenitic futhi echazwe ngokwengezwa kwe-molybdenum, ithusi ne-titanium. Yakhelwe ukunikeza ukumelana okuyingqayizivele ezindaweni eziningi ezigqwalayo, kokubili i-oxidizing kanye nokunciphisa.